Step 1. Punch a M2.5 hole on one end of the belt (the hole can be as the diameter of the M2.5 screw, leave enough margin)
Step 2. Fix the belt on one side of the belt -mount with a M3 x 8 screw and washer.
Step 3. Thread the belt around the pulley on the motor and the 624zz ball bearing.
Tips, Before you drill your second hole, make sure to pull belt tightly to make sure to proper placement of hole for a tight belt, if it is too loose, it will hinder the move of the print platform.
Loosen the Y idler wing nut when tightening belt onto the Y belt mount [No. 67] in order to make securing the belt to the block easier. Be sure to tighten wing nut fully once done.